Fireproof door.



' A. C. GODDARD.

FIREPROOF DOOR.

FEB. 16 1 APPLICATION FlL WED JAN. 9, 1919 1,295,728. Patented Feb. 25,1919.

ALV C. GQDDA tr.

on mac rmnriaoor noon.

Specification. of Letters Patent.

Patented net. as, rare.

Application filed February 16, 1916, Serial No. 78,598. Renewed January9, 1.919.- Serial No. 270,442.

v To all whom it may concern:

Be it known that I, ALVIN CARROLL Goo- DARD, a citizen of the UnitedStates,and a resident of the city of New York, Rich'- mond Hilhboroughof Queens, in the county of Queens and State ofNew York, have invented anew and Improved Fireproof Door, of which the following is a full,clear, and exact descriptiomi The object of the invention is to providea new and improved fireproof door which is exceedingly strong anddurable in construction, not liable to distortion, and ar ranged toprevent flames. from reaching the iinterior of the stiles and rails incase of a In order to produce the desired result use is made of tubularstiles and rails sheet metal, each stile or rail having pro jectingflanges at the inner edge, a panel having its edges spaced from theinner sides of the stiles and rails, and sheet metal panelattachingmembers engaging the panels and having extensions projecting beyond theedges of the panel and overlying said covering flanges, the saidextensions and covering flanges being welded together. Use is also madeof a corner piece covering up the joints of the stiles and rails.

A practical embodiment of the invention isrepre sented in theaccompanying drawings forming a part of this specification, similarcharacters of reference indicate corres onding parts in all the views.

igure 1 1s a sectional perspective view of one corner ot the woodenfilling or core; Fig. 2 is a similar view of the same with the'eornerpieces in position on the wooden stile and rail fillings or cores; 6

Fig; 3 is a similar view of the same with the tubular rail in place Onthe rail filli or core; Fig. 4. is a imilar view (if the se wi thetubular rail and stile in place on the rail or stile filling or core;

Fig. 5 is a cross section of the s on the line 5-5 of Fig. a A

Fig. 6 is a sectional plan view-of the same on the line 6-6 of Fig. 4;

Fig. 7 is a perspective view of a rail;

Fig. 8 in sectional perspective view at one end of a stile; d

of one end The side members .16 and in which Fig. 9 is a perspectiveview of one of the corner reinforcing pieces.

The door is provided with wooden stile fillings or cores 10 and woodenrail fillingsor cores 11 joined together in the usual manner by tonguesand grooves 12 but with joint of a stile filling 10 and rail filling 11is protected at'theinner edges thereof by two 7 corner pieces 15 alikein construction and overlying the stile and rail fillings from their 0p'osite faces, as plainly shown in Fig. 2.

ach of the corner pieces 15 is made of a single piece of sheet metalstamped to provide side members 16, 17, standing ata right angle one tothe other and fitting against the inner edges of the stile and railfillings.

with an integral oflset 18 parallel with the side member 16 andextending into the corresponding groove 13 or 14. The outer ends of theside members 16 and 17 are provided with. flanges 19 and 20 overlyingthe corre- 17 are provided sponding facesof the stile fillings 10 andrail-fillings 11, and the innenends of the side members 16 and 17 areconnected with each other by a connecting flange 21 adapted to abutagainst the corresponding flange 21 of the other corner piece used atthe same corner, it being understood that the flanges 21 meetapproximately midway of the thickness of the stile filling 10 and railfilling 11. The two overlying flanges 21 of the two corner piecesfastened to ether hy rivets, spot welding or other suite le means.

After position ateach corner of the door filling, the

.rail filling 11 is covered by a tubular sheet metal rail 25 completelyincasing the rail filling but being split at the inner edge of the railfilling and rovided thereat with two flanges 26 and 27 from the walls ofthe split inan inward direction. The faces of the rail 25 terminateiii-inwardly extending oflsets 28, 29 fitting into the grooves 13 and14, and the ofi'sets 28 and 29 terminate in flanges 30 and 31 extendingover onto the face of the stile filling The outer edge of the rail 25 isprovided with an extension 32. adapted to be folded over onto the end ofthe stile filling 10,

extending integrally the two corner pieces are placed in as will bereadily understood by reference to Fig. 3. The flange 27 has itsterminal portion 33 slightly offset and the corresponding portion of theother flange 26 is cut out so that the portion 33 overlies the flange 21of the rear corner piece 15, as plainly shown in Fig. 3. The faces ofthe rail ,25 overlie the flanges 20 of the corner pieces and the flanges30 and 31 extend over portions of theflanges 19 of -.the corner pieces15.

The stile filling 10 is incased in atubular sheet metal stile 40, splitlengthwise at the inner edge and provided along the s lit with flanges41 and 42, of which the ange 42 terminates at the outer edge of theflange 27 while the other flange 41 is provided at its end with anoffset portion 43 overlying flange 21 :of the front the correspondincorner piece 15 see Fig. 4). The flanges 21 and the offset portions 33and 43 of the flanges 27 and 41 are fastened together by spot welding orother means. The inner side of the stile 40 is provided with cut-outportions 44 to form flanges 45, 46 to extend 'into the offsets 28 and 29of the rail 25. The

faces of the stile 40 are provided with extensions 47 48 and the outerside is provided with an extension 49, the. latter being folded overagainst the end of the stile filling 10, after which the extensions 47and 48 are folded over the extension 49 (see Fig. 5 to completely incasethe end of the stile fil ing 10. The terminals of the extensions 47 and48 are preferably united by an interlocking seam 50,.as plainlyindicated in Fig. 5.

It will'be noticed that when the stile 40 is placed in position on thestile covering 10 it overlies the flange .30, and the exposed portion ofthe flange 19 as well as the extension 32 and a. comparatively smoothjoint is had between the connected stiles and rails.

From the foregoing it will be seen that a fireproof door constructed inthe manner described does vnot present any portions of the wooden stileand rail fillings to flames in case of a fire especially as the jointsare securely protected by the corner pieces 15. It will also be noticedthat by joining the stiles and rails together in the manner describedan'exceedingly strong and durable door is provided and one that is notliable to distortion by the shrinkin of the wood when the door issubjected to eat in case of conflagration.

Having thus described my invention, 1 claim as new and desire to secureby Let ters Patent:

1. A fireproof door, comprising Wooden stile fillings, wooden railfillings joined with the stile fillings and provided at their ends withgrooves, a tubular rail for each rail filling and having offsets andflanges at the ends, the oflsets extending into the said grooves and theflanges overlying the faces of the adjacent stile filling, and a tubularstile in'closing the corresponding stile filling and provided at eachend of the inner member with a cut-out portion to form flanges extendinginto the offsets of the rail.

2. A fireproof door, comprising wooden together by spot welding, theflan es terminating a distance from each end of the stile, each end ofthe stile being provided with a cut-out portion to form flangesextending into the said ofl'sets of the rail.

3. A fireproof door, comprising wooden stile fillings, wooden railfillings joined with the stile fillings, and provided at their ends withgrooves, a tubular rail for each rail filling and having offsets andflanges at the ends, the oflsets extending into the said grooves and theflanges overlying the faces of the adjacent stile filling, and a tubularstile inclosing the corresponding stile filling and provided at each endof the inner member with a cut-out portion to form flanges extendinginto the oflsets of the rail, the said stile bein provided at each endand on both faces and at the outer edge with integral extensionsincasing the end of the stile lling.

4. A fireproof door, comprising wooden stile fillings, wooden railfillings joined with the stile fillings and provided at their ends withgrooves, a tubular rail for each rail filhng and having ofl'sets andflanges at the ends, the oflsets extending into the said grooves and theflanges overlying the faces of the adjacent stile filling, and atubular, .st1le inclosing the corresponding stile filling and providedat each end of the inner members with a cut-out portion t form flangesextending into the offset of the rail, the said stile being provided ateach end and on both faces and at the outer edge with integralextensions incasing the end of the stile filling, the terminals of theface extensions being united by an interlocking seam.

5. A fireproof door, comprising wooden stile fillinigs, wooden railfillings joined with the stile lling's and provided at their ends withgrooves, corner pieces fitting against the adjacent ends of a stilefilling and rail filling at the inner edges thereof, each corner piecehavin an extension fitting against the walls of t e correspondinggroove, a

26 flanges extending into the 0 tubular rail for each rail filling andhaving ofisets and flanges at the ends, the offsets extending into thegrooves and the flanges overlying the faces of the adjacent stilefilling, and a tubular stile covering the corresponding stile fillingand provided at each end of the inner member with. a cut-out portion toform flanges extending into the said ofl'sets of the rail.

6. A fireproof door, comprising wooden stile fillings, wooden railfillings joined with the stile fillings and provided at their ends withgrooves, corner pieces fitting against the adjacent ends of a stilefilling and rail filling at the inner edges thereof, each corner piecehaving an extension fitting against the walls of the correspondinggroove, a tubular rail for each rail filling and having offsets andflanges at the ends, the offsets extending into the grooves and theflanges overlying the faces ofthe adjacent stile filling, and a tubularstile covering the corresponding stile filling and provided at each endof the inner member with a cut-outiportion to form set portions of therail, the said corner pieces having flanges and the said tubular stilesand rails having flanges at their inner members, the terminals of thestile and rail flanges overlying thecorner .piece flanges.

7. A fireproof door provided with a corner piece. having sidememb'ersstanding at a right angle one to the other and having a U- hapedintegral offset parallel with one side member and at a right angle tothe other flange at the other end.

In testimony whereof I have signed my,

name to this specification in the presence of two subscribing witnesses.

ALVIN o. GODDARD.

Witnesses THEO. G. HOSTER, PHILIP D. Romans.

